General
Operating voltage	38 V DC
Input voltage	100-240 V AC
Frequency	50/60 Hz
Connector type	C5
Colour	Black
Product type	Power adaptor
Compatibility	optiPoint, OpenStage, Desk Phone
ear category	Category 5: Small appliances power supply

The Unify End Device Power Supply Europe (EU) is a power supply unit for system telephones, specifically developed for use with optiPoint, OpenStage, and Desk Phone models. It serves as a replacement or additional power supply and ensures stable power delivery for the connected telephones. The device is designed for use in Europe and complies with applicable safety and electrical equipment requirements. Power supply is provided via a power unit with an input range of 100 to 240 V AC at a frequency of 50/60 Hz, enabling universal use in various countries. The output delivers a constant direct voltage of 38 V DC, which is required for the operating voltage of the mentioned telephone models. The power supply is black in colour and features a C5 plug type, which connects to the telephones.

Applications
This power supply is primarily intended for use in office environments where Unify system telephones are operated. It is suitable for both stationary installations and temporary or mobile deployment scenarios where a fixed power supply via the mains is necessary. The universal input voltage also makes it suitable for use in countries outside Europe, provided there are no certification restrictions.

Functions and Equipment in Detail
The power supply delivers a constant output voltage of 38 V DC, which is required for the proper operation of the connected system telephones. The input voltage of 100–240 V AC allows use with various mains voltages, regardless of regional power supply standards. The C5 plug type is standard on the mentioned telephone models and ensures a secure and reliable connection. The device is black, enabling discreet integration into the workplace. Power is supplied via the mains, ensuring continuous energy delivery without battery dependency.

Technology Explained Simply
The power supply converts alternating voltage from the mains (100–240 V AC) into a constant direct voltage (38 V DC), which is required by the internal electronic components of the system telephones. The frequency compatibility of 50/60 Hz ensures use in various countries. The output voltage of 38 V DC is specifically designed for Unify telephone models and ensures stable operating voltage. The use of the C5 plug type enables direct connection to the telephone without additional adapters or conversions. Power is supplied via the mains, providing continuous and reliable energy delivery.

Compatibility and Accessories
The power supply is compatible with system telephone models optiPoint, OpenStage, and Desk Phone. It is specifically developed for these devices and ensures safe and stable power supply.

Installation and Mounting
Installation is performed by directly connecting the power supply to the telephone via the C5 plug type. The power supply is connected to a power socket, supporting an input voltage of 100–240 V AC. Connection to the telephone is made via the integrated C5 plug. No additional tools or mounting work are required. Installation is simple and can be carried out by any user without special technical knowledge.

Operational Advantages
The power supply provides reliable and continuous power for system telephones, independent of battery charge level. The universal input voltage enables flexible use in various regions. The output voltage of 38 V DC is specifically designed for Unify telephone models and ensures stable operating voltage. The use of the C5 plug type ensures a secure and easy connection. The device is compact and discreetly black, enabling seamless integration in office environments. Power is supplied via the mains, ensuring uninterrupted and long-term energy delivery.